RE: [EnergyPlus_Support] Snowmelt

To: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx>

Subject: RE: [EnergyPlus_Support] Snowmelt

From: "Edward G. Lyon" <eglyon@xxxxxxx>

Date: Fri, 9 Dec 2011 19:45:03 +0000

Accept-language: en-US

Delivered-to: mailing list EnergyPlus_Support@xxxxxxxxxxxxxxx

Delivery-date: Fri, 09 Dec 2011 12:45:09 -0700

Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoogroups.com; s=lima; t=1323459906; bh=WNWQ05TOafjxiAT7hQ0j3NzclxRQIAzR9+Y42GMkDjM=; h=Received:Received:X-Yahoo-Newman-Id:X-Sender:X-Apparently-To:X-Received:X-Received:X-Received:X-IronPort-AV:X-Received:X-Received:To:Thread-Topic:Thread-Index:Message-ID:References:In-Reply-To:Accept-Language:Content-Language:X-MS-Has-Attach:X-MS-TNEF-Correlator:X-Originating-IP:X-eGroups-Msg-Info:From:X-Yahoo-Profile:Sender:MIME-Version:Mailing-List:Delivered-To:List-Id:Precedence:List-Unsubscribe:Date:Subject:Reply-To:X-Yahoo-Newman-Property:Content-Type; b=r88Bzkf6yogeHM3kvOXCoJcYXecGpIyEdS95P2uSUkzVjYY4WBnyLCAkKsCYQIj5Ga3sz/aLMPaDnJoQewoumcuP0axbWd/HkLTHfHv1B5/aUfiuoxdRsDDQlxHlDalp

Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=lima; d=yahoogroups.com; b=CSsRGiDC13Tw+6JtDTsC3KuNizSeqe+Xdl/k50QFi+8WTf3MUZBcGHQsyqMchNDsZ/irim3QUy4MHT+/a+yeMnt5z/QFduRqpSF987A/zMy3JSXuWqSjAjgZe0kaaVHr;

Envelope-to: linda@xxxxxxxxxxxxxx

In-reply-to: <CAKnCpCGnNYQeRpeaGOXVNePAboOPk8AKk85y+9r4hnG4n9R-Bw@mail.gmail.com>

List-id: <EnergyPlus_Support.yahoogroups.com>

List-unsubscribe: <mailto:EnergyPlus_Support-unsubscribe@yahoogroups.com>

Mailing-list: list EnergyPlus_Support@xxxxxxxxxxxxxxx; contact EnergyPlus_Support-owner@xxxxxxxxxxxxxxx

References: <CAKnCpCGnNYQeRpeaGOXVNePAboOPk8AKk85y+9r4hnG4n9R-Bw@mail.gmail.com>

Reply-to: EnergyPlus_Support@xxxxxxxxxxxxxxx

Sender: EnergyPlus_Support@xxxxxxxxxxxxxxx

Thread-index: AQHMtqoklWB87UTiQE2c94Rdv3bo+5XT555g

Thread-topic: [EnergyPlus_Support] Snowmelt

At least one issue is the current weather files seldom have reliable precipitation data. Typically a snow melt system remains on in larger installations because it takes too long to heat the slab and ground if it is only turned on for a snow event. The new systems have a low output standby heat setting with moisture sensors to trigger high output snow melting.

Ned Lyon, P.E. (MA)
Staff Consultant

SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9350 direct
781.907.9009 fax
www.sgh.com

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Karen Walkerman
Sent: Friday, December 09, 2011 2:38 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Snowmelt

Has anyone used EnergyPlus to model snowmelt? Snow-melting is mentioned under "GroundHeatExchanger:Surface", but I am skeptical about actually using this object to melt snow. Does this object model the additional heat lost from the surface in order to melt snow? Does it model the insulating properties of the snow if the slab is not warm enough to melt the snow?

I'm looking for any feedback, ideas or discussion.

Thanks!

Karen

__._,_.___

Primary EnergyPlus support is found at: http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx The primary EnergyPlus web site is found at: http://www.energyplus.gov The group web site is: http://groups.yahoo.com/group/EnergyPlus_Support/ Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files. EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.

Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe

__,_._,___

References:

[EnergyPlus_Support] Snowmelt
- From: Karen Walkerman