By Alaa A. Olama
DISTRICT COOLING: thought and perform offers a different research of an strength cogeneration approach, arrange to convey chilled water to constructions (offices, residence homes, and factories) desiring cooling for air-con and refrigeration. In iciness, the resource for the cooling can frequently be sea water, so it's a more affordable source than utilizing electrical energy to run compressors for cooling. The comparable know-how of District Heating has been a longtime engineering perform for a few years, yet District Cooling is a comparatively new expertise now being applied in a variety of components of the area, together with the us, Arab Emirates and Kuwait, and Saudi Arabia. latest books within the sector are scarce, and don't tackle a number of the the most important concerns dealing with countries with excessive total air temperatures, lots of that are constructing District Cooling plans utilizing sea water. DISTRICT COOLING: conception & perform integrates the speculation in the back of district cooling making plans with the sensible engineering methods, so it may well serve the coverage makers, engineers, and planners whose efforts must be coordinated and heavily controlled to make such platforms powerful and reasonable. In instances of emerging world wide temperatures, District Cooling is the way to supply wanted cooling with strength conservation and sustainability. This booklet would be the newest and complete examine at the topic, with Case experiences describing genuine tasks in detail.
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Additional resources for District cooling: theory and practice
Diversity factors are often calculated using the building’s daily peak load demand profiles. Otherwise, established rule of thumb figures are used. It is important to establish diversity factors prior to calculating the district cooling system’s overall installed refrigeration capacity in order not to overestimate this capacity. Overestimating a plant capacity will result in financial losses because of unutilized installed capacity and adversely affect the expected revenues. Underestimating a plant’s refrigeration capacity causes insufficient cooling load availability and the loss of redundant capacity.
The importance of those testing programs is paramount in deciding which refrigerants are most suited to HAT conditions and will lead the way for selecting suitable future low-GWP refrigerants. 3 FLUOROCARBON REFRIGERANT CHILLERS Mechanical vapor compression chillers are the most popular type of chillers for district cooling. They can be air- or water-cooled. Air-cooled chillers have capacities up to 1800 kW (500 TR). Water-cooled chillers are available at much higher capacities reaching up to 21,000 kW (6,000 TR).
Diversity factors are used to calculate the overall peak load of a district cooling system. 7 of the sum of individual building peak demands in applications where there is a great diversity of use. There are different types of diversity factors. Diversity factors inside a building depend on the actual use pattern of a building. Diversity factors between one building and the other in a district depend on each building’s function, orientation, use, and diversity factors between district cooling plants that may be serving a single district’s distribution network.
District cooling: theory and practice by Alaa A. Olama