1 and 2, consists of two plates with attached tubes placed in parallel between supply and return headers. This type of heat exchanger was chosen because of its thermal characteristics, large surface area, ready availability, and because the ice remains attached to the heat exchanger. To simplify the model, no stratification of the water is allowed in the storage tank. A submerged pump is placed in the tank to keep the water well mixed. Keep notes of what you did, why you did it, and what happened.
Some researchers keep research diaries so that they have a record of the methods they used.
Make sure you develop some way of recording your work, and that you then carefully select which material to include in your final methodology section. Remember who your audience will be, and be careful not to include unnecessary details. One way to avoid this problem is to use passive voice .