IRANIAN CONFERENCE ENERGY MANAGEMENT | Year:2015 | دوره:5 |Papers Count:2

AT THE SAME TIME THAT BUILDING ENGINEERS ARE TARGETING REDUCTION OF BUILDINGS’ ENVIRONMENTAL IMPACT, SUCH AS ENERGY CONSUMPTION AND GREENHOUSE EMISSIONS, INDOOR ENVIRONMENT OF DWELLINGS SHOULD ALSO BE CONSIDERED CAREFULLY. INDOOR ENVIRONMENT QUALITY OF AN OFFICE HAS SIGNIFICANT EFFECT ON THE PERFORMANCE AND PRODUCTIVITY OF ITS OCCUPANTS. IN ORDER TO PROVIDE SATISFACTORY INDOOR ENVIRONMENT, TIMELY ENERGY-RELATED DECISIONS SHOULD BE TAKEN BY ENERGY MANAGEMENT SYSTEM. SEVERAL INPUTS THAT ARE CHANGING CONTINUOUSLY, SUCH AS ENERGY PRICES, INDOOR AND OUTDOOR ENVIRONMENT PARAMETERS, OCCUPANTS’ PRESENCE, ACTIVITIES AND PREFERENCES ARE REQUIRED FOR DECISION-MAKING. THE MAIN INTEREST OF THIS RESEARCH IS TO PROPOSE A METHOD WHICH IS CAPABLE OF IMPROVING OCCUPANTS’ PRODUCTIVITY IN COMMERCIAL BUILDINGS, WHILE KEEPING ENERGY SAVING OBJECTIVE AS A PRIORITY. THERE ARE DIFFERENCES BETWEEN THERMAL PREFERENCES OF THE OCCUPANTS, AS WELL AS THEIR BEHAVIOR TOWARD ENERGY CONSUMPTION. PROPOSED METHOD TAKE INTO ACCOUNT THESE DIFFERENCES, BY PRESENTING TWO PERSONALIZED VARIABLES, MAXIMUM COMFORT TEMPERATURE AND TOLERANCE RANGE OF OCCUPANTS, AND INTRODUCED THEM INTO ENERGY AND COMFORT MANAGEMENT. THE OPERATION OF PROPOSED METHOD IS ANALYZED BY ANNUAL ENERGY PERFORMANCE SIMULATION OF A SINGLE-FLOOR COMMERCIAL BUILDING IN MONTREAL, CANADA. BASED ON THE PROVIDED RESULTS, THE PROPOSED METHOD IS CAPABLE OF IMPROVING PRODUCTIVITY OF OCCUPANTS, BY UP TO $800PER MONTH, WHILE REACHING ENERGY SAVINGS’ OBJECTIVES. IT IS ALSO OBSERVED THAT THE POTENTIAL FOR PRODUCTIVITY IMPROVEMENT IS HIGHER DURING WARM SEASON, COMPARED TO COLD SEASON OF MONTREAL.

WATER IS UTILIZED IN VARIOUS PROCESSES IN EVERY INDUSTRIES AND ITS OUTCOME IS WASTEWATER, WHICH HAS TO BE REFINED QUALITATIVELY PRIOR TO BE RECHARGED TO THE ENVIRONMENT. WATER PINCH ANALYSIS IS KNOWN AS AN ALGORITHM TO DESIGN AND RECTIFY THE SYSTEM, WHICH TRANSFERS MASS WITHIN PROCESS EQUIPMENT, AND EVENTUALLY LEAD TO MINIMIZATION OF FRESH WATER DEMAND AND OPTIMIZATION OF THE REGENERATED WATER. FURTHERMORE, WHILST ANALYZING OXYGEN PINCH, THE OXYGEN DEMAND WILL BE CONSIDERED IN ORDER TO DEAL WITH THE WASTEWATER QUALITY. IN THIS PAPER, WE SEEK TO DEVELOP A MATHEMATICAL MODEL BASED ON WATER PINCH ANALYSIS IN ORDER TO OPTIMIZE WASTEWATER-REFINING NETWORKS SO THAT BY CONSIDERING THE IMPACT OF MULTIPLE RESTRICTING POLLUTANTS IN THE NETWORK, THE WASTEWATER CAN BE MINIMIZED AND THE QUALITY OF WHICH CAN BE WATCHED SIMULTANEOUSLY. THE ATTEMPTS HAVE BEEN MADE TO SOLVE AND IMPROVE THE WASTE WATER REFINING NETWORK USING GAMS SOFTWARE. THE RESULT INDICATES THE PROSPECT OF OPTIMAL STRUCTURING THE NETWORK IN ORDER TO REDUCE THE OPERATING COSTS BY 12% IN THE WASTEWATER TREATMENT PLANT. IN ORDER TO CREDIT THE PROPOSED CASE, THE DENSITY OF COD PARAMETER IN THE PROCESS OF TREATMENT HAS BEEN STUDIED. ACCORDING TO THE CALCULATION MADE BASED ON WANG AND SMITH THEORIES, THIS PARAMETER HAS A DENSITY OF 118.6 PPM. THIS WILL CONFIRM THE FINDINGS BASED ON THE PROPOSED CASE AND VALIDATE IT AS AN INNOVATIVE METHOD TO REFINE WASTEWATER IN ANY REFINERY PLANT WITH REGARD TO THE REDUCTION IN OPERATION COST.