Question

1. In energy management explain briefly how energy audits would be carried out for each of the following

1. Lighting
2. Electric motors
3. Water heaters
4. HVAC equipment

Answer 1

Ligh hings lighting is not as a percent of tob) Indusmial use as it is în the commercial sector on The average, but lighhing ý a skll big enenergy use and cost area for many indusmial facililibes. Hours of operation of lights are also necessary, since lights aw Commenly left on when they all not needed. Timers, Energy management systems and occupancy Sensors are all valuable approaches to insuring that lights that are not needed all not turned. more efficient than mærum vapor lamps. How ever, many assembly lasks Can shu be performed adequately under high pressure sodium. lighting. These fabricahon, wood product fabricahon, plesbic exlusion, and many others. Electric mohes) A complete inventory of all motors ovell be should be taken, as well as recording dala on bow long each motor operates during aday.

for molore with high-efficiency models is almost always cost effechive. In oddihon, consideration should be given to replacement of standard drive belts with synchronous belts which transmit the motor energy more efficiency. and reduce the energy cost HVAC Systems produchon floors that are nok air condi Bioned often have large numbers of ventilating fans that operate any where from one shift Pee day to 24 Hours, plant with high heat loads and plant in the mild climate areas often leqve these venhlahing fans running all yeae for high efficiency. Times of Energy Management Sys might be used to hon off these ventilating fans when the plant is short down. water heates all wakee heates should be checked for efficient Operahon using a slack gas combusion analiyzen. The auditou should check to see wheather anguage tear from boilee is recovered for use in a heat or for some othee use such as walce heating, minkin pelle ud