REGION VI

Put some more tools in your tool box

SPEAKERS—

Mr. William Scott

Mr. David Guberud

Mr. Mick Schwedler, PE, LEED™ AP

4 Sessions

Technical Product Session 1:

Target Audience – Open

System Analysis

VARIABLE REFRIGERANT FLOW

No Background Required.

Presented by William Scott

· Principle of operation (details)

· Disadvantages of traditional heat pump systems

· Introduction to the pressure enthalpy cycle

· How VRF controls cooling

· How VRF controls heating during low ambient conditions

· How VRF can perform simultaneous heating and cooling

· Need for supplemental ventilation/DOAS

· Discussion regarding how to address need for economizer

· How does VRF compare performance-wise to traditional systems

· How does VRF compare performance-wise to high performance systems

· Controls

· Potential problems

· Installation costs

· Installation risks

Technical Product Session 2:

Target Audience – Open

RETRO-COMMISSIONING

No Background Required.

Presented by David Guberud

· Commissioning Distinctions

Þ Commissioning (new construction)

Þ Re-Commissioning

Þ Retro-Commissioning (break out session focus)

· Retro-Commissioning Phases

Þ Owner/Staff Interviews

Þ Gathering information

Þ Development of Current Facility Requirements

Þ Testing

Þ Recommending

Þ Implementing

Þ Sustaining

· The cost to provide Retro-Commissioning services

· Who can be your Retro-Commissioning provider

· LEED-EB (O&M) Retro-Commissioning requirements

· Is your Building a Retro-Commissioning candidate

· Focus on Energy as a potential partner

· Q&A

Technical Product Session 4:

Target Audience – Open

DOAS WITH CHILLED BEAM

Vs.

CONVENTIONAL OVERHEAD

Upfront cost and payback analysis

 

Presented by ??TBA??

 

PROJECT OVERVIEW

HGA to provide overview of building type, construction, owners wish list, hours of operation, and any special considerations that needed to take place.

 

OVERHEAD VAV

#1:  As we should all understand conventional VAV systems, HGA to open showing the conventional layout of the system.  Air handler configuration, boiler configuration, chiller configuration, air distribution, water distribution, etc.  Summary on equipment loads would also be useful to establish a baseline for comparison.

 #2:  Butters to present in generic terms the cost of equipment broken into generic items.  This could be done with a simple spreadsheet.

 EQUIPMENT

Chillers and cooling towers

Chilled water and condensate pumps

Boilers and hot water pumps

Air Handlers

Frequency drives and starters

Terminal boxes

Air distribution

Perimeter and supplemental heat 

INSTALLATION

Piping installation

Sheet Metal Installation

Controls

Project management

(overhead and profit to be buried into the cost of particular items so as not to reveal anything Butters doesn't want to show)

OVERALL PROJECT COST 

#3:  HGA to present estimated operating costs based on fixed parameters as those given by the owner.  Can we include demand charges in this? 

 

CHILLED BEAM

#1:  HGA to present the layout of equipment of chilled beam.  In this portion we would only discuss the configuration of the system - i.e. the type of DOAS air handler required to provide dehumidified air to the chilled beam, review loads in the spaces (shouldn't change), air distribution strategy/chilled beam configuration, controls strategy.

 

#2:  Butters to present in generic terms the cost of equipment broken into generic items.  This could be done with a simple spreadsheet.

 

EQUIPMENT

Chillers and cooling towers

Chilled water and condensate pumps

Boilers and hot water pumps

Air Handlers

Frequency drives and starters

Terminal boxes

Air distribution

Perimeter and supplemental heat

 

INSTALLATION

Piping installation

Sheet Metal Installation

Controls

Project management

(overhead and profit to be buried into the cost of particular items so as not to reveal anything Butters doesn't want to show)

 

OVERALL PROJECT COST

Specifically show differences in costs for air handling equipment, chillers, boilers, cooling towers, pumps, drives and starters, sheet metal labor, piping labor,

 #3:  HGA to present the estimated operating costs of the chilled beam system, paying particular attention to differences in air handling unit size, AHU heating and cooling BTU requirements,  pump size differences, drive and starter size differences. 

 

Technical Product Session 3:

Target Audience – Open

GEOTHERMAL

Speaker

Mick Schwedler, PE, LEED™ AP manager, applications engineering • Trane

 

Central Geothermal Systems

 

The Central Geothermal System concept combines the efficiency of a traditional geothermal heat pump system with centralized heating, cooling, and air handling to move toward an even more efficient system with additional significant benefits including better humidity control, centralized maintenance, enhanced acoustics, and superior flexibility. This presentation concentrates on the operating modes and control of Central Geothermal Systems.