Heating and Cooling Air condition (HVAC) systems

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China has a densely populated urban area with the massive growth in buildings. Designers must there be proactive in the approach adopted to the façade towards the provision of designs that are in line with the architectural requirement in a manner that prevents environmental pollution and energy loss. Designing high energy efficient Heating and Cooling Air condition (HVAC) systems is an essential component in the high rise buildings. The social benefit resulting from installation of sustainable heating and cooling designs relates to improved health and quality of life. This paper aims at addressing how HVAC project affects a society and human behavior effects on its success.

Energy efficient HVAC systems are attained by entraining cold air from the upper zone of the building hence significantly reducing the energy needed for cooling. A sustainable HVAC system is centered on three major aspects: comfort, satisfaction, and health. These aspects are seemingly very similar, but they have diverse scholarly foundations and also apply different methodologies. On the aspect of health, the main domains are epidemiology and professionalism in public health. A study on health benefits for a sustainable HVAC system is focused on ensuring air quality in the indoor environment. (Mcdowall, 2007) Numerous health effects result from environmental stimuli due to interactions with the systems of the body including the skin and breathing system. According to Moore (2012) the symptoms for these conditions occur as a result of environmental agents comprising of microbial and chemicals which interferes with body operations in the affected persons. Ineffective functioning or total absence of HVAC systems has been associated with high levels of occupant sicknesses in office buildings. Research indicates two areas showing sickness symptoms, that is, sick building syndrome and communicable illnesses.

Research in building science ensures a study in the level of comfort while environmental psychologists study the accruing well-being and psychological processes. The latter processes are generated by perceptual and sensory effects in giving an interpretation regarding environmental information in matters of current needs as well as preferences. (Haines & Wilson, 2003) The psychological understanding of HVAC system about the environment is that there are effects on work productivity and performance as well as consequences of stress. As a result of inherent variability in responding to psychological effects, exposure to similar environmental conditions usually affects different people in different ways. An occupant’s satisfaction and comfort concerning heating and cooling conditions in a building are primarily focused on evaluating post-occupancy effects.( Moore, 2012) According to research, there is higher satisfaction for occupants’’ on air quality as compared to acoustic and thermal satisfaction.

It is essential to improve comfort and satisfaction owing to the fact that discomfort causes negative consequences on work satisfaction, effectiveness and general quality of life. Also, the cultural affiliation of people influences their HVAC system preference. For instance, the Japanese prefer the ‘task-ambient’ heating and cooling systems and is seen as advancement from ‘kotatsu’ the traditional heating system whereby a person places a heater under the table. Moreover, human behaviors and their interaction within a building space is crucial in attaining a holistic sustainability. According to Mcdowall (2007) occupants cause an impact on HVAC systems by leaving equipment on power mode hence wasting energy. Adopting zoning strategies giving control to the thermostat and specifying raised floors with adjustable air ventilation are measures that improve effects of HVAC systems.


The choice for sustainable HVAC systems fundamentally works towards saving energy while maintaining the right indoor air quality. Non-objective or lack of proper HVAC systems has severe consequences for health, comfort and general social life. Therefore having sustainable heating and cooling systems is fundamental in achieving building development as prompted by the awareness in energy loss prevention as well as a reduction in carbon pollution.

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