It is cru­cial to un­der­stand the ap­pli­ca­tion, de­sign and pur­pose of a build­ing be­fore choos­ing the HVAC sys­tem: San­jeev Seth at Inger­soll Rand

It is cru­cial to un­der­stand the ap­pli­caɵon, de­sign and pur­pose of a build­ing be­fore choos­ing a proper HVAC sys­tem, writes San­jeev Seth, Coun­try Leader, Cli­mate Soluɵons, Trane & Thermok­ing, In­dia Ter­ri­tory & SAARC Mar­kets, API SBU, Inger­soll Rand

MGS Architecture - - Front Page -

It is a well-es­tab­lished fact that the power re­quire­ments for heat­ing, ven­ti­la­tion and air con­di­tion­ing in homes and of­fices claim a ma­jor part of the yearly ex­pen­di­ture. While our tier II & III cities are un­der a tran­si­tion phase, the met­ros are see­ing an in­crease in con­struc­tion across ver­ti­cals such as Metro Rail, Health­care, Hos­pi­tal­ity, Com­mer­cial Spa­ces, etc.

There is a need for a ro­bust ini­tia­tive to im­prove en­ergy ef­fi­ciency and sus­tain­abil­ity. Re­vi­sion of the BEE rat­ings for the Res­i­den­tial sec­tor and new ECBC guide­lines for the Com­mer­cial sec­tor in­di­cate the im­por­tance of en­ergy, its con­ser­va­tion, and make the stake­hold­ers more re­spon­si­ble and ac­count­able. En­ergy con­sump­tion in com­mer­cial build­ings ac­counts for al­most 30% of the an­nual op­er­at­ing bud­get, and is largely due to HVAC and light­ing sys­tems. While LEDS have been adopted, aware­ness of en­er­gy­ef­fi­cient HVACS is less.

A good build­ing de­sign is im­por­tant in de­cid­ing its over­all ‘ther­mal com­fort’ and ef­fi­ciency. The ori­en­ta­tion of the build­ing can con­sid­er­ably re­duce air con­di­tion­ing load re­quire­ment. To de­ter­mine the en­ergy ef­fi­ciency of a HVAV sys­tem, one must con­sider the en­vi­ron­ment and space. The de­sign would dic­tate the type, and the main­te­nance will en­sure sus­tain­able en­ergy-ef­fi­cient re­sults.

Tech­no­log­i­cal ad­vance­ment in HVAC has given us many op­tions from a sim­ple split air-con­di­tioner to a large cen­tral plant sys­tem. For a small or medium size home, move­ment from Fixed Speed Hi-wall to In­verter driven Hi-wall units can be ob­served. In­verter driven units are more en­ergy-ef­fi­cient and can meet the en­ergy lev­els as per the new reg­u­la­tion. For large homes and vil­las, Mini VRF or Ad­vance Multi-splits fit the re­quire­ment.

In the com­mer­cial seg­ment, so­lu­tions range from sim­ple chiller with fixed speed de­sign to ad­vance AFD driven chillers, which of­fer very high part load ef­fi­ciency. De­signs such as ‘Low flow sys­tems’ not only save power but also help utilise less water re­source to give the same ad­van­tage of ther­mal com­fort.

Dis­tri­bu­tion sys­tems such as VFD Driven Air Han­dling units and Vari­able Air Vol­ume pro­vide the flex­i­bil­ity to match the de­mand load and thereby save the en­ergy re­quired to cool the oc­cu­pied space. Al­ter­nate sources of en­ergy such as So­lar PV roof tops, Geother­mal Water source heat pumps etc, are ap­pli­ca­tion spe­cific and used in niche ver­ti­cals.

There are many eco-friendly HVAC sys­tem providers in the mar­ket such as TRANE, which has more than 100 years of pro­vid­ing HVAC so­lu­tions. Its lat­est prod­uct, the Sin­te­sis chiller, a part of Inger­soll Rand Eco­wise™ port­fo­lio, in­creases en­ergy ef­fi­ciency and re­duces green­house gas emis­sion. All Eco­wise prod­ucts are de­signed to lower en­vi­ron­men­tal im­pact with next-gen low-gwp re­frig­er­ants and high-ef­fi­ciency op­er­a­tion. The build­ing con­trols com­ple­ment in op­ti­miz­ing the en­ergy de­mand by means of seam­less in­te­gra­tion with the equip­ment.

The good thing is that most de­vel­op­ers and builders are now in­vest­ing in green build­ing de­signs, or retro fit­ting ex­ist­ing sys­tems to make them ef­fi­cient

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.