1. CDS GROUP CERAMIC DRYING SYSTEMSWASTE HEAT RECOVERY AND HEAT UTILIZATION SYSTEM

2. The World Leading Experts on Drying Ceramics. 3. Why recover waste heat? In many cases the amount of waste heat recovered from the kilns is sufficient to satisfy the heat demands of the Ware Dryers and Mould Dryers as well as providing enough energy to heat the workshops via Air Handling Units. The system can be used for both continuous Tunnel kilns and intermittent Shuttle Kilns The system can be applied to both existing and new Kilns and then utilized into either new or existing Dryers and equipment. The system can be installed with virtually no disruption to the factory process. The return on investment period can be as little as two years, with every Kw of energy saved after than being a direct contribution to profit. 4. What can CDS offer? Design, consultation and feasibility study concerning the viability of the project. Factory survey identifying the potential energy users. Report of the Investment return period. Flexibility of contract structure. Complete equipment supply from the UK or part local content. Supervision of local labour or complete installation by CDS. Selection of control options.Comprehensive commissioning service. After sales service from the UK contribution to profit. 5. Q: Where can the waste heat be claimed from?A: Waste heat can be reclaimed from all available sources onboth Tunnel Kilns and Shuttle Kilns. Depending on the designof Tunnel Kiln, waste heat can be recovered from the cooling,centre and exhaust. On Shuttle Kilns, heat is recoveredduring the cooling part of the curve. 6. Q: What medium is used to convey the recovered energy? A: The heat may either be transferred in the form of ducted hot air or alternatively by means of hot water via pipe work. When used to heat dryers, the hot water system is preferable so as not to compromise the humidity balance within the dryers. Also transferring a large mass of energy is usually uneconomical using ductwork.Photos show waste heat being collected from a Tunnel Kiln anddistributed into Dryers and a pre-kiln Glaze Dryer with residual usedfor space heating the factory via Air Handling Units. 7. CDS GROUP Q: How does the system work?A: The following diagrams show:- How the waste heat is recovered, How the waste heat is transferred, How the waste heat is utilized. 8. Typical Control Architecture Factory Network ProvidingEthernet SwitchVPN ConnectionRSView SCADA PCforRemote Access Located remote from the usersEthernet to PLCsPLCPLCPLC PLCAllen Bradley Panel View C600 HMISet point and processvariable monitoring Ware DryersMould Dryers Environmental Heat Recoverysystems 9. Ware Dryers 10. Air Handling Units 11. Mould Dryers * Waste heat may be used for Mould drying 12. Pre-Kiln Glaze Dryers * Waste heat may be used for Pre-Kiln Glaze drying 13. Heat Recovery DataYEARLY FIGURES (based on 1 x 7 day working week per month) High Temp Circuit (kw/hr's) Low Temp Circuit (kw/hr's)Additional Heat Additional HeatMonthWaste Heat Available Total of Heat Users Surplus HeatWaste Heat AvailableTotal of Heat Users Surplus Heat RequiredRequiredJanuary217,710 321,7435,932 65,821170,324340,234 5,644 205,021February 217,710 311,8727,321 54,993172,325310,652 5,644 165,032 March 217,710 291,263 11,032 49,321173,654245,823 5,644 112,032April217,710 264,924 16,832 38,112168,554158,773 6,43560,145May217,710 239,015 20,883 25,734165,923125,712 7,43235,003June 217,710 227,774 22,732 24,987167,083105,98212,73220,821July 217,710 226,046 23,463 25,832167,367116,00315,94320,043 August217,710 233,821 24,632 27,635166,943138,66414,84335,773 September 217,710 239,732 21,772 29,863165,773169,663 6,43743,921October217,710 262,811 17,663 36,832168,345200,735 5,64477,447 November217,710 290,212 7,32248,721173,882252,994 5,644 133,932 December217,710 311,0845,232 57,021171,992318,643 5,644 183,032 TOTALS = 2,612,520 3,220,297 184,816484,872 2,032,1652,483,878 97,6861,092,202YEARLY FIGURES (based on 338 days per annum) High Temp Circuit (kw/hr's) Low Temp Circuit (kw/hr's)Additional Heat Additional HeatMonthWaste Heat Available Total of Heat Users Surplus HeatWaste Heat AvailableTotal of Heat Users Surplus Heat RequiredRequiredJanuary 876,0241,294,633 23,869264,851685,351 1,369,03722,710824,965February876,0241,254,914 29,458221,281693,403 1,250,00422,710664,057 March876,0241,171,987 44,391198,458698,751 989,14522,710450,795April 876,0241,066,004 67,729153,355678,229 638,87225,893242,012May 876,024 961,75184,029103,549667,643 505,84129,905140,845June876,024 916,51991,469100,543672,310 426,45151,231 83,780July876,024 909,56694,411103,943673,453 466,77464,152 80,649 August 876,024 940,85199,114 111,198 671,747 557,95859,725143,944 September876,024 964,63687,606120,163667,039 682,69225,901176,730October 876,0241,057,501 71,073148,205677,388 807,71922,710311,632 November 876,0241,167,758 29,462196,044699,6681,018,000 22,710538,917 December 876,0241,251,743 21,053229,442692,0631,282,159 22,710736,486 TOTALS =10,512,283 12,957,862743,664 1,951,0338,177,0459,994,652 393,070 4,394,813Total Combined Waste Heat Available =18,689,328 kw/hr's HT Waste Heat Utilised = 9,768,618 kw/hr's LT Waste Heat Utilised = 7,783,975kw/hr's %age HT Waste Heat Utilised =92.93%%age LT Waste Heat Utilised =95.19% HT Additional Energy Req'd =1,951,033 kw/hr'sLT Additional Energy Req'd =4,394,813kw/hr'sMAXIMUM AVAILABLE HEAT RECOVERY PER YEAR = 18,689,328 kw/hr's COMBINED USAGE OF HEAT RECOVERY PER YEAR =17,552,594 kw/hr's%age WASTE HEAT UTLISATION IN THE DRYERS = 93.92%SURPLUS ENERGY PER YEAR = 1,136,734 kw/hr'sADDITIONAL ENERGY REQUIRED PER YEAR =6,345,845kw/hr's Note: The surplus 6.08% heat can be used for ancillary heating such as canteen, office space, warehouse etc... 14. Heat Recovery DataHigh Temperature CircuitLow Temperature Circuit1,400,000 1,400,000 1,200,000 1,200,000 1,000,000 1,000,000 Kw/Hr's per month Kw/Hr's per month 800,000 800,000 600,000 600,000 400,000 400,000 200,000 200,000 0 0JanuaryFebruary arch April May June July August M September November OctoberDecember JanuaryFebruary arch April May June July August M September November OctoberDecember Waste Heat AvailableTotal of Heat Users Waste Heat Available Total of Heat UsersSurplus HeatAdditonal Heat Required Surplus Heat Additonal Heat Required 15. Payback Period Maximum available heat recovery per annum = 18,689,328 kw/hrs Combined usage of heat recovery per annum = 17,552,594 kw/hrs Percentage waste heat utilisation in the factory = 93.92% The remaining 6.08% waste heat can be used in the warehouse, canteen, offices etc Surplus energy per annum = 1,136,734 kw/hrs Additional energy required per annum = 6,345,845 kw/hrs Assumed cost of natural gas per kw = $0.033 Estimated annual fuel cost saving = $579,236 Investment cost for waste heat system = $1,500,000 Return on investment period = 2.59years 16. CDS GROUPNOThere can be COMPROMISE when it comes to QUALITY & RELIABILITY.