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⑥The inner wall brick walls 17-240-10, heat transfer coefficient is 0.82K (w/ ㎡.℃).
⑦Window using a double-layer transparent insulating glass 9mm inner, heat transfer coefficient is 2.61K (w/ ㎡.℃).
⑧The floor type floor -8, the heat transfer coefficient of 0.68K (w/ ㎡.℃).
8) For corridor, bathrooms, staircases without considering the use of air conditioning load calculation, considering the wall heat transfer, adjacent room temperature 3℃.
9) The human labor intensity is: because the office light level labor, clustering coefficient was 0.89.
2. air conditioning system
1) The air conditioning system design used for fan-coil unit plus fresh air system, one to three layers each have placed in the ceiling type air cabinet every layer the ceiling, the models are selected for MKS15D4Y/C, electric leaf valve pipe is also provided with a fresh air, fresh air after the treatment were sent into each typhoon fan coil air box.
2) Due to frequent flow Hotel district office staff, fresh air volume is calculated by the density.
3) For each room on the indoor environment is different, the use of air conditioning in different time. The air conditioning system to consider the use of fan coil unit system, with a temperature control device, adjust the room temperature.
4) To ensure that fresh air supply, the use of fresh air system independent, as close as possible to the new air fan coil outlet.
5) The design of fan-coil selection is based on the psychrometric chart principle, the indoor cold, wet load, air volume, air condition by Hongye version 8 computer software income, refer to the instruction manual annex page. A fan coil according to the demand of different settings of one to two outlet.
6) The design for the square diffuser air supply, air supply and sent back to the. Spacing between the inlet air is 2.6 meters, height of 3 meters. Wind speed control in 2-3m/s. The air inlet at
Fan coil end, therefore no longer separate return device. And the return air inlet and outlet spacing between 1.2 meters.
3. air conditioning water system
1) 1-3 layer using a water system, two-pipe with programming using the waterway system. Each layer is arranged on the pipeline well, for the supply and return water pipe riser placement.
2) Condensed water layer 1-3 fan coil are discharged into the toilet recovery ground leak, by the drainage system to the outside row. According to the requirements, set the condensed water slope is 1%, so as not to cause plugging or water of the situation.
4. air conditioning wind system
Public toilet set mechanical ventilation system, according to the number of 15 times / (m3 . h) calculation. The stairs because the windows, so no longer set the mechanical exhaust device, using natural ventilation.
Three, equipment selection
Through the design, building a total area of 5528.76m2, the summer air-conditioning cooling load is 255.55kw, the thermal load is 136.56kw, the cooling load index for 102.36W/ m3. According to the calculated load, ultimately determine the unit model for Hitachi RCU40WHZ, RCU50WHZ type of screw type water chiller, with a preparation, a total of two units, cooling capacity of 109.5kw, consider the user inside the building while using the coefficient, can satisfy the requirement of use.
Four, design basis:
1. Code for design of heating ventilation and air conditioning (1 GBJ 19-87-2001)
2. Civil building HVAC design techniques (Second Edition)
3. "HVAC drawing standard" (GB/T 50114-2001)
4. Smoke preventing civil construction technical specification (DGJ 08-88-2000)
Five, parameters
Shanghai meteorological parameters
Seasonal dry bulb temperature wet bulb temperature relative humidity