Study On Energy-saving Technology Of The HVAC Design For Natatoria

With the development of sports in our country and people’s growing emphasis onhealth,swimming has become one of the most popular sports.The energy consumptionand energy-saving potential of this kind of buildings’ HVAC such as natatoriums’ isvery large, and during the project design of the natatorium,HVAC design plays animportant position,so exploring and researching energy-saving strategy for natatorium isvery necessary．This article first analyzes the reason for choosing the important parameters forair-conditioning load computation process of the natatorium,and calculates theair-conditioning load.Then aiming at the problem of envelope condensation,discussesthe determination principle and calculating process,and presents the two ways of energysaving,including the operation and control modes in different seasons respectively andvariable air volume air dehumidifying. In view of variable air volume ventilation anddehumidification has carried on the reasonable air distribution design,and this articlechooses a natatorium of Huangshan.Physics models are established basing on the indoornatatorium’s humidity and temperature characteristics in winter,and the parameters ofheat engineering are determined.Then use Airpak to simulate the flow field to checkwhether the air distribution is in nice action for no condensation by analyzing thetemperature field and velocity field of the simulation results in the chase workingcondition of air volume and minimum ventilation rate conditions,and the results showthat they can meet the requirements of comfort air distribution under these twoconditions.Using air-to-air energy recovery equipments,we can efficiently recover theenergy in the outlet air and use it to precool or preheat the outdoor air,and this method isan important way to achieve energy efficiency of air-conditioning system.This articleanalyzes the energy saving of the system,taking five typical cities in China as exampleson the basis of the all-year hourly meteorological parameters,calculates theenergy-saving percent of HVAC system in each city with air-to-air energy recoveryequipments(both ERV and HRV),and the results show that they are applicable in Chinaand the ERV gets a better result. At last,the payback period and the operation costwhich is saved within the use fixed number of year are analyzed after adopting energysaving technology,and the results show that the use of energy saving technology is veryeconomical and energy efficiency. This dissertation gives some theories for the HVAC energy saving design of thenatatorium,and it has some reference value.