You are a helpful assistant generating synthetic data that captures *System 1* and *System 2* thinking, *creativity*, and *metacognitive reflection*. Follow these steps in sequence, using tags [sys1] and [end sys1] for *System 1* sections and [sys2] and [end sys2] for *System 2* sections.

1. *Identify System 1 and System 2 Thinking Requirements:*
   - Carefully read the text.
   - Identify parts of the text that require quick, straightforward responses (*System 1*). Mark these sections with [sys1] and [end sys1].
   - Identify parts that require in-depth, reflective thinking (*System 2*), marked with [sys2] and [end sys2].

2. *Apply Step-by-Step Problem Solving with Creativity and Metacognitive Reflection for System 2 Sections:*

   *2.1 Understand the Problem:*
   - Objective: Fully comprehend the issue, constraints, and relevant context.
   - Reflection: "What do I understand about this issue? What might I be overlooking?"
   - Creative Perspective: Seek hidden patterns or possibilities that could reveal deeper insights or innovative connections.

   *2.2 Analyze the Information:*
   - Objective: Break down the problem logically.
   - Reflection: "Am I considering all factors? Are there any assumptions that need challenging?"
   - Creative Perspective: Explore unique patterns or overlooked relationships in the data that could add depth to the analysis.

   *2.3 Generate Hypotheses:*
   - Objective: Propose at least 10 hypotheses, each with a Confidence Score (0.0 to 1.0) and Creative Score (0.0 to 1.0), reflecting originality, surprise, and utility.
   - Reflection: "Have I explored all possible explanations or approaches, both conventional and unconventional?"
   - Creative Perspective: Consider novel angles that might provide unexpected insights.

   *2.4 Anticipate Future Steps and Obstacles:*
   - Objective: Make predictions, accounting for potential outcomes and obstacles.
   - Reflection: "What challenges might I face? Is my plan flexible for different scenarios?"
   - Creative Perspective: Visualize unforeseen outcomes and adapt plans to make use of them effectively.

   *2.5 Evaluate Hypotheses:*
   - Objective: Assess hypotheses based on feasibility, risk, and potential impact.
   - Evaluation: Refine Confidence and Creative Scores as needed.
   - Reflection: "Am I unbiased in my assessment? Which options fit best with the overall objectives?"
   - Creative Perspective: Identify hidden opportunities or overlooked details in each hypothesis.

   *2.6 Select the Best Hypothesis:*
   - Objective: Choose the most promising, strategic hypothesis.
   - Reflection: "Why does this hypothesis stand out? How does it uniquely address the issue?"
   - Creative Perspective: Consider any underutilized potential in the selected approach.

   *2.7 Implement the Hypothesis:*
   - Objective: Outline actionable steps for testing the hypothesis.
   - Reflection: "Is this plan practical? What resources or preparation are required?"
   - Creative Perspective: Refine steps to maximize effectiveness and yield unexpected benefits.

   *2.8 Monitor and Review Progress:*
   - Objective: Review progress, noting areas for improvement.
   - Reflection: "What’s working well? What could be improved?"
   - Creative Perspective: Look for emerging patterns that could refine future approaches.

   *2.9 Reflect and Capture Insights:*
   - Objective: Summarize lessons learned and insights gained for future reference.
   - Reflection: "What new understanding has emerged from this process?"
   - Creative Perspective: Identify innovative insights or patterns that could be applied to similar challenges.

3. *Generate Text Output with Interleaved System 1 and System 2 Responses:*
   - Use the tags [sys1] and [sys2] throughout.
   - Aim for a lengthier, detailed response. Combine both direct, straightforward *System 1* insights and reflective, deeply analytical *System 2* segments to capture a blend of quick observations and thoughtful analysis.

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### *Example Input Text:*

You are tasked with analyzing a sudden shift in customer preferences in a tech market. There has been a noticeable decline in demand for physical devices, with customers increasingly interested in digital-only options. The challenge is to understand this shift, generate hypotheses for why it might be occurring, and explore potential strategies for adapting to this new trend.

---

### *Processed Output with System 1 and System 2 Thinking:*

The tech market is experiencing a shift in customer demand, moving away from physical devices toward digital-only options.

[sys1]
Customer demand has shifted from physical devices to digital-only options.
We need to understand why this change is happening and find strategies to address it.
Key factors may include cost, convenience, and technological trends.
[end sys1]

[sys2]
**2.1 Understand the Problem:**
The goal is to understand the underlying reasons for the shift in demand from physical devices to digital-only options, then develop a strategy to adapt.

*Reflection:* 
"I understand that preferences are changing, but what might be driving this? Is it primarily cost, or are there other factors such as convenience or sustainability?"

*Creative Perspective:* 
"Could there be a larger trend in digital minimalism or a preference for eco-friendly solutions that we’re missing? What unseen motivations might explain this shift?"

**2.2 Analyze the Information:**
There are multiple possible factors driving this shift, from economic influences to cultural shifts. It’s essential to isolate each factor and understand its impact.

*Reflection:* 
"Am I fully considering the various economic and social influences? Could there be a technological factor, like better internet speeds, that makes digital-only products more accessible?"

*Creative Perspective:* 
"Are there patterns or trends in other markets that could shed light on this shift? Could this be part of a larger trend toward virtual experiences?"

**2.3 Generate Hypotheses:**
1. Customers prefer digital options due to lower costs. (Confidence: 0.8, Creative: 0.4)
2. There’s a growing trend toward minimalism and reduced physical clutter. (Confidence: 0.7, Creative: 0.7)
3. Digital products offer greater flexibility and ease of use. (Confidence: 0.6, Creative: 0.6)
4. Environmental concerns are pushing consumers away from physical goods. (Confidence: 0.6, Creative: 0.8)
5. Advances in tech make digital-only options more functional. (Confidence: 0.8, Creative: 0.5)
6. Pandemic-era remote work increased demand for digital solutions. (Confidence: 0.7, Creative: 0.6)
7. Media coverage of the environmental impact of physical devices affects preferences. (Confidence: 0.5, Creative: 0.7)
8. There’s an increase in global digital literacy, expanding market access. (Confidence: 0.6, Creative: 0.6)
9. Customers view digital as more convenient and scalable for future needs. (Confidence: 0.7, Creative: 0.5)
10. Younger consumers prefer the aesthetics and convenience of digital products. (Confidence: 0.6, Creative: 0.6)

*Reflection:* 
"Have I considered all possible influences? Are there any surprising factors that could explain this shift?"

*Creative Perspective:* 
"Could specific social trends, like the rise of influencer culture or digital-first lifestyles, be influencing customer choices?"

**2.4 Anticipate Future Steps and Obstacles:**
*Objective:* Anticipate possible challenges, such as resistance from segments still preferring physical products.

*Reflection:* 
"What market obstacles might we face if we shift our focus to digital-only? Are there sub-segments that still prioritize physical products?"

*Creative Perspective:* 
"Could expanding digital options help us reach a more global audience? Are there emerging trends that we could leverage in our strategy?"

[end sys2]

[sys1]
To address this shift, consider a strategy that incorporates both digital-only offerings and educational campaigns about the benefits of digital solutions.
Use insights from customer feedback and current trends to guide product development.
Focus on flexibility and adaptation to cater to different customer segments.
[end sys1]


The present invention relates to a temperature controller for a liquid cooling system for holding, by making utilization of a refrigeration circuit, the temperature of a coolant liquid for use in devices such as a machine tool at a substantially constant value and more particularly it relates to energy-saving technology thereof.
Conventionally, liquid cooling systems adapted to cool a coolant liquid of a device such as a machine tool by circulation thereof have been known in the art. One such liquid cooling system is disclosed in Japanese Patent Kokai Gazette No. H02-104994. The disclosed liquid cooling system comprises: a coolant liquid circulation circuit through which the device coolant liquid is circulated by a motor-driven circulation pump; and a refrigeration circuit formed by interconnecting, in the order given, a compressor, a condenser, a pressure reducing mechanism, and an evaporator. The coolant liquid is cooled by making utilization of the evaporation of liquid refrigerant in the evaporator, and the compressor is subjected to variable displacement control by an inverter so that the temperature of the coolant liquid is held at a substantially constant value even when there occurs a change in heat generation accompanied with the operation of the device.
Apart from the above, such previously known liquid cooling systems employ a circulation pump for the circulation of a device coolant liquid. The circulation pump is a rated flow rate type and therefore discharges coolant liquid at a fixed rate, and the rated flow rate is so set as to secure a sufficient cooling capacity or the like even when the device operates at its maximum capacity. And the circulation pump is in operation all the time. In other words, the circulation pump is continuously operated and discharges a fixed amount of coolant liquid, even when it is not required doing so. That is, there are operation situations in which it is sufficient for the circulation pump to deliver a minimum amount of coolant liquid required for lubrication or the like, when the amount of heat generated in the operation of the device decreases (for example, when the device is out of operation) and there is no need for the circulation pump to deliver cooled coolant liquid to the device at a rated flow rate. The circulation pump consumes energy unnecessarily, and there is room for improvement.
Further, when the compressor stops operating at the time of controlling the temperature of the coolant liquid, the inverter also becomes idle. Therefore, it is desirable that the inverter be utilized effectively.
Bearing in mind the above, the present invention was made. Accordingly, a first object of the present invention is to reduce unnecessary energy consumption by a circulation pump by providing improvements in the manner of controlling the circulation pump in a liquid cooling system comprising a coolant liquid circulation circuit through which a device coolant liquid is circulated as described above, and a refrigeration circuit through which refrigerant is circulated.
Further, a second object of the present invention is to effectively utilize an inverter which controls the operating frequency of a compressor of a liquid cooling system of the same type as described above, by providing improvements in the manner of controlling the inverter.
In order to achieve the first object described above, the amount of coolant liquid that a circulation pump circulates is made variable depending on the operating state or operating environmental state of a machine in the present invention.
More specifically, as shown in FIGS. 4, 6, 9, and 10, the present invention presupposes a liquid cooling system, the liquid cooling system comprising a coolant liquid circulation circuit (8) in which a coolant liquid of a machine (1) is circulated by a circulation pump (12) which is operated by a motor (11), and a refrigeration circuit (20) formed by interconnecting, in the order given, a compressor (15), operated by a motor (14), for compressing gas refrigerant, a condenser (16) for condensing gas refrigerant, a pressure reducing mechanism (17) for depressurizing liquid refrigerant, and an evaporator (18) for cooling the coolant liquid in the coolant liquid circulation circuit (8) by heat exchange with refrigerant.
And, a coolant liquid circulation amount control means (27) is provided which varies, on the basis of an operating state or operating environmental state of the machine (1), the amount of coolant liquid that the circulation pump (12) circulates.
As a result of such arrangement, the circulation pump (12) is operated by the motor (11), thereby causing a coolant liquid for the machine (1) to circulate through the coolant liquid circulation circuit (8), and the device coolant liquid is cooled, midway along the coolant liquid circulation circuit (8), by heat exchange with refrigerant in the evaporator (18) of the refrigeration circuit (20). Then the amount of circulating coolant liquid in the coolant liquid circulation circuit (8) is changed by the coolant liquid circulation amount control means (27) depending on the operating state or operating environmental state of the machine (1). Because of this, when the machine tool (1) enters for example the out-of-operating state and, as a result, the amount of heat produced in the operation of the machine tool (1) is reduced (i.e., when there is no need to deliver to the machine tool (1) cooled coolant oil at a rated flow rate and it is sufficient that a minimum required amount of coolant oil for lubrication or the like is delivered to the machine tool (1)), it is arranged such that the amount of coolant liquid that the circulation pump (12) circulates is reduced. This reduces wasteful consumption of energy by the circulation pump (12) and energy savings are achieved.
Further, as shown in FIG. 10, it may be arranged such that the circulation pump (12) is a variable displacement pump capable of variable discharge of coolant liquid, and that the coolant liquid circulation amount control means (27) varies the rate of flow by controlling the discharge amount of the variable displacement pump.
Such arrangement makes it possible to vary the rate of flow of coolant liquid by controlling the amount of coolant liquid that the variable displacement pump discharges, and the coolant liquid circulation amount control means (27) can be embodied easily.
Further, it may be arranged such that a pole change means is provided which changes the number of poles of the motor (11) of the circulation pump (12), and that the coolant liquid circulation amount control means (27) varies the rate of flow by controlling the number of poles of the motor (11) through the pole change means.
If the pole change means performs control so that the number of poles of the motor (11) of the circulation pump (12) is reduced, then it is possible to reduce the amount of coolant liquid that the circulation pump (12) circulates, and the coolant liquid circulation amount control means (27) can be embodied.
As shown in FIGS. 4 and 9, it may be arranged such that an inverter (28, 28P) is provided which changes the operating frequency of the motor (11) of the circulation pump (12), and that the coolant liquid circulation amount control means (27) varies the rate of flow by controlling the operating frequency of the motor (11) through the inverter (28, 28P).
If the inverter (28, 28P) performs control so that the operating frequency of the motor (11) is reduced, then it is possible to reduce the amount of coolant liquid that the circulation pump (12) circulates, and the coolant liquid circulation amount control means (27) can be embodied.
Further, as shown in FIG. 4, it may be arranged such that the inverter (28) controls the operating frequency of the motor (14) of the compressor (15), and that a switching means (33) is provided which switches, according to an operating state or operating environmental state of the machine (1), the destination, to which an output from the inverter (28) is directed, between the motor (14) of the compressor (15) and the motor (11) of the circulation pump (12).
In accordance with such arrangement, the destination, to which the output from the inverter (28) is directed, is switched between the motor (14) of the compressor (15) and the motor (11) of the circulation pump (12) according to the operating state or operating environmental state of the machine (1) by the switching means (33), and for example during normal operation the output of the inverter (28) is fed to the motor (14) of the compressor (15) and the motor (11) of the circulation pump (12) is connected to a normal power supply. On the other hand, when reducing the amount of circulating coolant liquid because, for example, the machine (1) is out of operation, the output of the inverter (28) is switched to the motor (11) of the circulation pump (12) from the motor (14) of the compressor (15). As a result, the operation of the compressor (15) is stopped and the operation of the circulation pump (12) is controlled by the inverter (28). As described above, the single inverter (28) is switchably connected to the compressor (15) or to the circulation pump (12), thereby making it possible to effectively utilize the idle inverter (28) when the compressor (15) stops operating, for the operation of the oil pump (12). In comparison with such a case that outputs from two inverters are connected to the compressor (15) and to the oil pump (12), respectively, it is possible to cut costs by reducing the number of inverters (28) required. Further, it is possible to reduce power loss for inverter efficiency when the circulation pump (12) is operated in normal mode by the output of the inverter (28).
Further, it may be arranged such that the coolant liquid circulation amount control means (27) has, as the operating mode of the circulation pump (12), a rated flow rate mode in which the rate of flow of the coolant liquid is fixed and a variable flow rate mode in which the rate of flow of the coolant liquid varies, and is so configured as to allow the circulation pump (12) to switch between the flow rate modes according to an operating state or operating environmental state of the machine (1).
As a result of such arrangement, the operating mode is switched between the rated flow rate mode and the variable flow rate mode according to the operating state or operating environmental state of the machine (1). For example, during normal operation the rated flow rate mode is selected, whereby the rate of flow of coolant liquid is held constant, while, for example when the machine (1) enters the out-of-operation state, the variable flow rate mode is selected, whereby the rate of flow of coolant liquid is made variable. Accordingly, it is possible to easily change the operation mode of the circulation pump (12).
In order to achieve the second object described above, the present invention presupposes a liquid cooling system comprising: a coolant liquid circulation circuit (8) in which a coolant liquid of a machine (1) is circulated by a circulation pump (12) which is operated by a motor (11); a refrigeration circuit (20) formed by interconnecting, in the order given, a compressor (15), operated by a motor (14), for compressing gas refrigerant, a condenser (16) for condensing gas refrigerant, a pressure reducing mechanism (17) for depressurizing liquid refrigerant, and an evaporator (18) for cooling the coolant liquid in the coolant liquid circulation circuit (8) by heat exchange with refrigerant; and an inverter (28) for controlling the operating frequency of the motor (14) of the compressor (15), wherein a switching means (33) is provided which switches the destination, to which an output from the inverter (28) is directed, between the motor (14) of the compressor (15) and any other electric operating means according to an operating state or operating environmental state of the machine (1).
As a result of such arrangement, the destination, to which the output from the inverter (28) is directed, is switched between the motor (14) of the compressor (15) and another electric operating means according to the operating state or operating environmental state of the machine (1) by the switching means (33). For example, when the compressor (15) is in operation, the output from the inverter (28) is connected to the compressor (15) so that the operating frequency of the compressor (15) is controlled in variable manner. On the other hand, when the compressor (15) is stopped, the output from the inverter (28) is connected to the electric operating means so that the frequency of a power supply to the electric operating means is controlled in variable manner. Because of this, the output from the inverter (28) is always connected to either one of the compressor (15) and the electric operating means, which makes it possible to effectively and continuously utilize the inverter (28) without stopping the operation of the inverter (28).
Preferably, the electric operating means is any one of the motor (11) of the circulation pump (12), an electric heating means (24) for electrically heating the coolant liquid circulating in the coolant liquid circulation circuit (8), and an electric air blowing means (22) for sending air to the condenser (16).
As a result of such arrangement, the electric operating means can be embodied. Especially, if it is arranged such that the electric heating means (24) is controlled by the inverter (28), this makes it possible to provide enhanced temperature control performance for coolant liquid.
It may be arranged such that the operating state or operating environmental state of the machine (1) includes at least one of a signal sent from the side of the machine (1), a liquid temperature of the coolant liquid, an operating temperature of the machine (1), and an environmental temperature of the machine (1). This arrangement makes it possible to embody examples of the operating temperature or operating environmental temperature of the machine (1).
The machine (1) is a machine tool or industrial machine using oil as a coolant liquid. As a result, the machine (1) becomes a desirable device capable of effectively providing the effects of the present invention.